From 7fda099641d0f7302654bef69727eea5aeecbbca Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Tue, 27 Feb 2018 13:38:47 -0800 Subject: Changes imported from Abseil "staging" branch: - f0a03a750a36dfbd7ab06d2913430ed5f988fd68 Add absl::RegisterSymbolizer() to mutex_nonprod.cc for AP... by Derek Mauro - f34a2ee35b4f6b321c570c51b0c381647176df63 Add the async signal-safe Symbolizer to Abseil. by Derek Mauro - 6a29ec2d6dc080691f6d32e1982201d1d173bdb3 Document preferred placement of ABSL_CONST_INIT attribute... by Abseil Team - 6f04ed6aa9c19bd717f0e8f422a97f3e3368cf30 Internal change. by Abseil Team - 0af9a330aff8fc0b41dcb3fe519930c36b01a9ef Declare absl::raw_logging_internal::SafeWriteToStderr in ... by Abseil Team - 223ff26745d31dfb4b59c36f3dee5441506af3c2 Fix ABSL_ARRAYSIZE() to handle rvalues. by Xiaoyi Zhang GitOrigin-RevId: f0a03a750a36dfbd7ab06d2913430ed5f988fd68 Change-Id: I491f9cc81ca3ee078fb737cbf8fa9bf6a730eee1 --- absl/base/attributes.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'absl/base/attributes.h') diff --git a/absl/base/attributes.h b/absl/base/attributes.h index c44b2e89..a4ec7e7c 100644 --- a/absl/base/attributes.h +++ b/absl/base/attributes.h @@ -543,11 +543,18 @@ // not compile (on supported platforms) unless the variable has a constant // initializer. This is useful for variables with static and thread storage // duration, because it guarantees that they will not suffer from the so-called -// "static init order fiasco". +// "static init order fiasco". Prefer to put this attribute on the most visible +// declaration of the variable, if there's more than one, because code that +// accesses the variable can then use the attribute for optimization. // // Example: // -// ABSL_CONST_INIT static MyType my_var = MakeMyType(...); +// class MyClass { +// public: +// ABSL_CONST_INIT static MyType my_var; +// }; +// +// MyType MyClass::my_var = MakeMyType(...); // // Note that this attribute is redundant if the variable is declared constexpr. #if ABSL_HAVE_CPP_ATTRIBUTE(clang::require_constant_initialization) -- cgit v1.2.3